Home / 12,225.24-16,870.62-6,636.12

Finding the Fourth Proportional to 12,225.24, 16,870.62 and 6,636.12

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Solution

The fourth proportional to 12,225.24, 16,870.62 and 6,636.12 is: 9,157.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225.24 : 16,870.62 = 6,636.12 : x
  2. Step 2: Convert to fraction form
    12,225.24/16,870.62 = 6,636.12/x
  3. Step 3: Cross multiply
    12,225.24x = 16,870.62 × 6,636.12
  4. Step 4: Simplify right side
    12,225.24x = 111,955,458.79
  5. Step 5: Solve for x
    x = 111,955,458.79/12,225.24
  6. Step 6: Final answer
    x = 9,157.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.